XGT PLC XGR/XGK/XGI Series | Redundant CPU for Continuous Production
XGT PLC XGR/XGK/XGI Series delivers uninterrupted industrial control with redundant CPU technology on XGR models. Seamless switchover in milliseconds prevents production downtime, while modular design and multi-protocol support (EtherNet/IP, OPC UA) fit diverse automation needs—ideal for heavy-duty manufacturing, power plants, and chemical processing.
Product Features
- High-Speed Processing Performance - With a processing speed of 6.5ns, 3 times faster than standard CPUs, and a doubled memory capacity of 10MB, the LS XGT Series PLC can rapidly handle complex control tasks with exceptional efficiency.
- Rich Modular Options - It offers a full range of modules including CPU, I/O, communication, and temperature control units. A single system can accommodate up to 96 modules and support a maximum of 6144 I/O points, enabling flexible construction of distributed control systems.
- Multi-Protocol Communication Support - Compatible with multiple protocols such as RAPIEnet, EtherNet/IP, OPC UA and Modbus TCP/IP, it achieves seamless connection and data exchange with various devices and systems.
- High-Reliability Design - Selected models (e.g., XGR Series) adopt redundant CPU design for seamless switchover, ensuring uninterrupted operation of critical production lines. Additionally, the high-reliability power module optimized via simulation boosts efficiency from 67% to 90%.
- User-Friendly Software - Equipped with the XG5000 programming software, it features intuitive operability and diverse monitoring & diagnostic functions. It enables multi-function PLC management, multi-task operation and multi-functional program organization within one single project.
Product Highlights
- 3x Faster Processing (6.5ns) & Doubled Memory (10MB) for Complex Tasks
- Redundant CPU Design (XGR Series) - Seamless Switchover for 24/7 Production
- Max 96 Modules & 6144 I/O Points - Flexible Distributed Control
- Multi-Protocol Support (RAPIEnet/EtherNet/IP/OPC UA) - Seamless Integration
- User-Friendly XG5000 Software - Efficient Programming & Diagnostics
- 90% Efficient Power Module - Reliable & Energy-Saving Operation
Technical Core Parameters
| Parameter Category |
XGR Series |
XGK Series |
XGI Series |
| CPU Processing Speed |
42ns/step |
28ns/step |
28ns/step |
| Overall Processing Performance |
6.5ns (3x faster than standard CPUs) |
6.5ns (3x faster than standard CPUs) |
6.5ns (3x faster than standard CPUs) |
| Memory Capacity |
Total: 32MB (Program: 7MB, Data: 2MB, Reserved: 2MB, Flash: 16MB); 10MB expandable memory (2x larger than standard) |
10MB expandable memory (2x larger than standard); CPU variants with 16K/32K/32K/64K/128K steps |
10MB expandable memory (2x larger than standard); CPU variants with 256K/512K/1M bytes |
| Max I/O Points |
131,072 |
6,144 |
6,144 |
| Redundant CPU Switchover Time |
Min 4.3ms / Max 22ms |
- |
- |
| Programming Compliance |
Ladder logic |
Ladder logic |
IEC 61131-3 (LD, SFC, ST; user-defined FB) |
| Built-in PID Loops |
256 |
256 |
256 |
| Max Modules per System |
96 |
96 |
96 |
| Communication Protocols |
RAPIEnet, EtherNet/IP, OPC UA, Modbus TCP/IP, XGT proprietary protocol |
Ethernet, Profibus, DeviceNet, RAPIEnet, EtherNet/IP, OPC UA, Modbus TCP/IP |
EtherCAT, RAPIEnet, EtherNet/IP, OPC UA, Modbus TCP/IP |
| Programming Software |
XG5000 |
XG5000 |
XG5000 |
| Power Module Efficiency |
90% (up from 67% via simulation-optimized design) |
90% (up from 67% via simulation-optimized design) |
90% (up from 67% via simulation-optimized design) |
Application Fields and Scenarios
Automotive & Auto Parts Manufacturing - Controls robotic welding, precision painting, multi-axis synchronization for transmission assembly, and continuous conveyor operations. The redundant CPU prevents unexpected production line shutdowns while high-speed processing keeps up with production rates exceeding 60 units per minute.
Petrochemical & Power Energy - Excels at continuous control in high-temperature, high-pressure environments including crude oil distillation towers, oil pipeline flow monitoring, and boiler control. Dual hot standby enables millisecond-level switchover for 24/7 uninterrupted operation.
Logistics & Port Automation - Coordinates automated sorting lines, container cranes, and AGV material handling systems. Modular design allows I/O point expansion based on warehouse scale, while protocol support ensures seamless connection with logistics management systems.
Food & Beverage & Pharmaceutical - Compliant with FDA and GMP certification requirements for production environments with strict cleanliness standards. Controls precise ingredient batching, sterilization temperature monitoring, and packaging label traceability printing.
Building Automation & Large Venues - Unifies control of central air conditioning, lighting, ventilation, and security systems in high-rise buildings, stadiums, and airport terminals. OPC UA protocol integrates with Building Management Systems for energy consumption visualization.
Rail Transit & Airport Facilities - Controls metro signaling systems, baggage sorting lines, and station equipment. Redundant design prevents signal interruptions while high-speed communication protocols ensure zero-latency data transmission between devices.
Steel & Metal Processing - Thrives in harsh conditions of high temperature and heavy dust. Controls blast furnace ironmaking temperature, steel plate rolling precision, and robotic welding coordination with high anti-interference design and 10MB large memory.
Frequently Asked Questions
Q: Just got the PLC, wired it up but no power—even the power light doesn't come on. Is the device broken?
A: Probably not a hardware issue! Check these 3 things first: ① Is the power input matching? (Overseas voltages are 110V/230V—check the PLC power module's rated voltage, don't plug in the wrong one.) ② Did you reverse the positive and negative terminals? (Especially for DC power—reversing them triggers protection, so the light won't turn on.) ③ Did the circuit breaker in the distribution box trip? (New wiring might have short circuits—turn off power first to check for loose or shorted terminals.) If all are good, use a multimeter to test the power module's output voltage. Contact the supplier only if it still doesn't work.
Q: XG5000 software can't connect to the PLC, keeps showing "communication timeout." How to fix this?
A: The most common problem on overseas sites! Rule out these scenarios: ① Is the Ethernet cable faulty? (Swap with a known good one—avoid cables over 10 meters, they cause unstable signals.) ② Wrong IP settings? (PLC's default IP and your computer's network card IP must be on the same subnet. E.g., PLC = 192.168.1.10, computer = 192.168.1.20, subnet mask 255.255.255.0.) ③ Firewall block? (Overseas factory computers often have enterprise firewalls—add XG5000 to the trust list or temporarily turn off the firewall.) ④ Wrong communication port? (Choose "EtherNet/IP" for Ethernet connections, not other protocols.) Also, avoid wireless connections—use a wired connection, wireless is way less stable for industrial use.
Q: I/O modules are connected to sensors/actuators, but the PLC shows "no signal" even though the devices work. What's wrong?
A: First, tell if it's an input or output module issue: ① Input modules (connect to sensors): Check if the sensor has power (e.g., NPN sensors need DC24V), if the signal wire is connected to the correct channel (match PLC input channel numbers with terminals—don't plug into the wrong one), and if the sensor is triggered (e.g., proximity sensors should light up when facing metal). ② Output modules (connect to actuators): Check if the actuator's load exceeds the module's rated current (e.g., relay output modules have a 2A max per channel—use an intermediate relay for high-power motors), and if the module's common (COM) terminal is powered (many people forget this, causing no output signal).
Q: The PLC shuts down suddenly after running for a while, but works again after restart. Isn't the redundant CPU (XGR series) supposed to prevent this?
A: Redundant CPUs protect against hardware failures—this "intermittent shutdown" is almost always an external issue: ① Unstable power supply (Overseas factories have large power grid fluctuations, especially with many motors. Use an independent voltage stabilizer for the PLC—don't share power with high-power equipment.) ② Overheating (PLCs in sealed distribution boxes overheat easily in summer—add cooling fans or vents, and don't stack PLCs next to inverters/contactors, which generate too much heat.) ③ Loose wiring (Vibrations from conveyors or machines loosen terminals over time—tighten I/O and power module screws regularly.) Also, check if the "watchdog timeout" setting in the program is too short—it can trigger shutdowns too.
Q: Can't communicate with other overseas brand devices (e.g., Siemens inverters, Rockwell HMI). Is there a protocol incompatibility?
A: XGT series supports multiple protocols, so compatibility shouldn't be the issue—two common on-site problems: ① Wrong protocol selected (e.g., if the inverter uses Modbus TCP, set the PLC to "Modbus TCP" instead of EtherNet/IP). ② Mismatched communication parameters (Baud rate, data bits, parity must be the same. Don't duplicate Modbus slave addresses—e.g., if the inverter is slave 1, no other device should use 1.) ③ Wrong device address (Enter the correct IP or slave address of the other device in the PLC—typos will break communication.) If it still fails, test with a protocol debugging tool (e.g., Modbus Poll) first to rule out PLC issues.
